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  <title>Retrieve the system error message associated with the given errno</title>
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    <li>Retrieve the system error message associated with the given errno</li>
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  <div id="layout-content"><div id="function.posix-strerror" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">posix_strerror</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">posix_strerror</span> &mdash; <span class="dc-title">Retrieve the system error message associated with the given errno</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.posix-strerror-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>posix_strerror</strong></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$error_code</code></span>): <span class="type">string</span></div>

  <p class="para rdfs-comment">
   Returns the POSIX system error message associated with the given
   <code class="parameter">error_code</code>.  You may get the
   <code class="parameter">error_code</code> parameter by calling
   <span class="function"><a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a></span>.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.posix-strerror-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">error_code</code></dt>

     <dd>

      <p class="para">
       A POSIX error number, returned by 
       <span class="function"><a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a></span>. If set to 0, then the
       string &quot;Success&quot; is returned.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.posix-strerror-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the error message, as a string.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.posix-strerror-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3303">
    <p><strong>示例 #1 <span class="function"><strong>posix_strerror()</strong></span> example</strong></p>
    <div class="example-contents"><p>This example will attempt to kill a process which does not
    exist, then will print out the corresponding error message.</p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />posix_kill</span><span style="color: #007700">(</span><span style="color: #0000BB">50</span><span style="color: #007700">,</span><span style="color: #0000BB">SIGKILL</span><span style="color: #007700">);<br />echo&nbsp;</span><span style="color: #0000BB">posix_strerror</span><span style="color: #007700">(</span><span style="color: #0000BB">posix_get_last_error</span><span style="color: #007700">()).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
No such process
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.posix-strerror-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.posix-get-last-error.html" class="function" rel="rdfs-seeAlso">posix_get_last_error()</a> - Retrieve the error number set by the last posix function that failed</span></li>
   </ul>
  </p>
 </div>


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